[Bug c++/53039] [4.7/4.8 Regression] including <functional> breaks std::is_convertible with template-pack expansion

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53039

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|mitchnull+gcc at gmail dot  |hjl.tools at gmail dot com
                   |com                         |
            Summary|[C++11]including            |[4.7/4.8 Regression]
                   |<functional> breaks         |including <functional>
                   |std::is_convertible with    |breaks std::is_convertible
                   |template-pack expansion     |with template-pack
                   |                            |expansion

--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-04-19 10:45:53 UTC ---
Looks like a regression. I wonder if isn't some sort of weird side-effect of
the fix for PR48322: we should at least compare pre and post Rev 181547. Then
do a binary search. 

HJ, can you help with the search? (mind the -std=c++11)